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The Linac Coherent Light Source at SLAC, the world’s first hard X-ray free-electron laser, takes X-ray snapshots of atoms and molecules at work, revealing fundamental processes in materials, technology and living things.

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Rooftop view of Linac Coherent Light Source (LCLS)

News Feature

They saw how the material finds a path to contorting and flexing to avoid being irreversibly crushed.

MEC silicon
Illustration
When light drives electron transfer in a molecular complex, the surrounding solvent molecules also rapidly move.
When light drives electron transfer in a molecular complex, the surrounding solvent molecules also rapidly move.
Illustration

Scientists use a series of magnets to transform an electron bunch into a narrow current spike which then produces a very intense attosecond X-ray...

XLEAP illustration
Photograph

SLAC’s Linac Coherent Light Source (LCLS) Near Experimental Hall building at sunrise with Stanford University Hoover Tower in the background.

SLAC’s Linac Coherent Light Source (LCLS) Near Experimental Hall building at sunrise with Stanford University Hoover Tower in the background.
Illustration

The ultrafast, ultrabright X-ray pulses of the Linac Coherent Light Source (LCLS) have enabled unprecedented views of a catalyst in action, an important step...

Nilsson science cover
Photograph

Dominique White takes a look at the last cryomodule for LCLS-II delivered from Fermi National Accelerator Laboratory.

Dominique White takes a look at the last cryomodule for LCLS-II delivered from Fermi National Accelerator Laboratory.
Photograph

Kayla Ninh at LCLS’s ChemRIX Hutch 2.2 in Near Experimental Hall. 

Kayla Ninh at LCLS’s ChemRIX Hutch 2.2 in Near Experimental Hall.
Photograph

SLAC’s linac before sunset looking west.

SLAC aerial of linac
Video

Aerial view of SLAC’s   campus. Stanford campus and Hoover tower can be seen in the distance.

Front Page - SLAC Full Campus
Video
Video

The LSST Camera is being tested inside the clean room at SLAC

Front Page - LSST Camera
Video
Photograph
Cryomodule installation in the LCLS tunnel
Press Release

Studying a material that even more closely resembles the composition of ice giants, researchers found that oxygen boosts the formation of diamond rain.

Diamond rain formation